//
//  MainViewController.swift
//  SinaWeibo
//
//  Created by 王鹏 on 16/4/14.
//  Copyright © 2016年 heihei. All rights reserved.
//

import UIKit

class MainViewController: UITabBarController {

    @objc private func composeDidClick() {
        print(__FUNCTION__)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
       
//        print(tabBar.classForCoder)
        
        let mainTabBar = MainTabBar()
        
        setValue(mainTabBar, forKey: "tabBar")
        
        //添加子视图控制器
        addChildViewControllers()
        
        mainTabBar.composeBtn.addTarget(self, action: "composeDidClick", forControlEvents:.TouchUpInside)
    }
    
    //private 是私有的意思 加了private之后 只有在这个类里边才能调用
    private func addChildViewControllers() {
    addChildViewController(HomeTableViewController(), title: "首页", imageName: "tabbar_home")
    addChildViewController(MessageTableViewController(), title: "消息", imageName: "tabbar_message_center")
    addChildViewController(DiscoverTableViewController(), title: "发现", imageName: "tabbar_discover")
    addChildViewController(ProfileTableViewController(), title: "我", imageName: "tabbar_profile")
    }

    private func addChildViewController(vc: UIViewController , title: String , imageName: String) {
        
        //实例化导航视图控制器
        let nav = UINavigationController(rootViewController: vc)
        
        //        home.navigationItem.title = "首页"
        vc.title = title
        vc.tabBarItem.image = UIImage(named:imageName)
//        vc.tabBarItem.selectedImage = UIImage(named: imageName + "_highlighted")?.imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
//        vc.tabBarItem.setTitleTextAttributes([NSForegroundColorAttributeName : UIColor.orangeColor()], forState: UIControlState.Selected)
 
        //添加
        addChildViewController(nav)
    }
    

}
